by USA TODAY Sports, USATODAY

by USA TODAY Sports, USATODAY

In another upset, 2004 Wimbledon champion Maria Sharapova took an early exit this year, losing to Michelle Larcher de Brito, 6-3, 6-4.

"I just wasn't there," Sharapova said about her effort. She thought her opponent was better. "She played really great tennis," Sharapova said." All the credit to her. She played really well from start to finish."

The winner, a 19-year-old, is ranked No. 131.

Sharapova, the No.3 seed, did not seem to be moving at 100% after taking three early spills and battling with a left hip injury.

"It is just part of the game," Sharapova said of the slippery courts that claimed several players.

After the match, Sharapova said she hadn't checked into her injury but believes her hip was "strained a little bit."

Sharapova called for the trainer after serving in the second set.

She ended up on her back to be being stretched. She would leave the court for nine minutes to get stretched out.

Sharapova, who had trouble with double-faults, saved four match points in the final game, but de Brito ended up with the triumph.

It was a day of injuries at Wimbledon, with Jo-Wilfried Tsonga, Victoria Azarenka and John Isner among the seven players to retire or not start matches due to injuries.

In addition, Caroline Wozniacki lost in straight sets after injuring her ankle early in the match.

Sharapova and Azarenka were seen as the top challengers to Serena Williams for this year's women's title.